body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.4;
    text-align: center;
}

header a {
    margin: 0;
    padding: 0;
    font-size: .9rem;
    color: #00a2dd;
    font-weight: bold;
}

main {
    max-width: 500px;
    margin: auto;
    padding: 1rem 2rem;
}

.banner img {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 50px 10px;
}

.slogan {
    font-size: .9rem;
    background-color: #eee;
    padding: .5rem;
}

.logo {
    max-width: 260px;
    margin-block: 1.5rem;
}

h2 {
    margin-bottom: .5rem;
}

p {
    margin-top: 0;
    margin-bottom: 2.5rem;
}

a {
    display: inline-block;
    padding: 1rem 2rem 1.1rem;
    font-size: 1.2rem;
    margin: .5rem .5rem;
    border-radius: 10px;
    text-decoration: none;
    color: #fff;
}

a.contact {
    background-color: #00a2dd;
}

a.don {
    background-color: #ffc42e;
}

footer {
    margin-top: 2rem;
    margin-bottom: 2rem;
    padding: 1rem;
    font-size: .8rem;
    border-top: 1px solid #ddd;
}

details {
    max-width: 500px;
    margin: auto;
}